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公开(公告)号：US3734708A
公开(公告)日：1973-05-22
申请号：US3734708D
申请日：1971-02-24
申请人： AMEX PHOSPHATES
发明人： BURNS T
CPC分类号： C05B13/06
摘要： Methods and apparatus for reacting ammonia and phosphoric acid in a high temperature vaporous reaction. The apparatus includes a tee mixer wherein hot ammonia is used to heat and atomize phosphoric acid, and a loop reactor wherein the mixed reactants are retained for from 0.10 to 0.18 seconds after which the reaction product is immediately quenched. The apparatus also includes materials handling devices for controlling reactant flows and reaction conditions whereby high analysis polyphosphate fertilizers are produced in dry or liquid form.
摘要翻译： 在高温汽相反应中使氨和磷酸反应的方法和装置。 该装置包括三通混合器，其中使用热氨来加热和雾化磷酸;以及环流反应器，其中混合的反应物保留0.10至0.18秒，之后反应产物立即骤冷。 该设备还包括用于控制反应物流动和反应条件的材料处理装置，由此高分析聚磷酸盐肥料以干燥或液体形式生产。
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公开(公告)号：US3708275A
公开(公告)日：1973-01-02
申请号：US3708275D
申请日：1970-10-28
申请人： CITIES SERVICE CO
发明人： CAMP E
CPC分类号： C01B25/301 , C05B7/00 , C05G1/00 , C05B13/06 , C05D9/02
摘要： Alkali metal phosphates can be prepared by adding an alkali metal halide to a solution of phosphoric and nitric acids. The resulting gases can be recovered. After removal of halogen, as by boiling, the solution can be adjusted in nitric acid content and neutralized to yield a fertilizer. Alternatively, the solution can be substantially denitrated, yielding an alkali metal phosphate. Additionally, after denitration the resulting residue can be calcined to yield a water soluble fertilizer. Micronutrients incorporated in the phosphoric acid-nitric acid solution also can be rendered water soluble by this process.
摘要翻译： 碱金属磷酸盐可以通过向磷酸和硝酸的溶液中加入碱金属卤化物来制备。 所得气体可以回收。 除去卤素后，通过沸腾，可以将溶液调节为硝酸含量并中和以产生肥料。 或者，溶液可以基本上脱硝，产生碱金属磷酸盐。 此外，在脱硝之后，所得残余物可以被煅烧以产生水溶性肥料。 掺入磷酸 - 硝酸溶液中的微量营养素也可以通过该方法使其变得水溶性。
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公开(公告)号：US3655358A
公开(公告)日：1972-04-11
申请号：US3655358D
申请日：1969-07-03
申请人： CONTINENTAL OIL CO
IPC分类号： C05B7/00
摘要： A high-analysis suspension fertilizer is prepared by ammoniating phosphoric acid containing polyphosphoric acid to produce a supersaturated solution of ammonium phosphate containing ammonium polyphosphate, and comminuted chrysotile asbestos as a suspension aid. Additional plant nutrient salts may be blended into said saturated solution in forming the suspension product.
摘要翻译： 通过氨磷酸含磷酸制备高分析悬浮肥料，生产含磷酸铵的过饱和溶液，多磷酸铵和粉碎的温石棉作为悬浮助剂。 另外的植物营养盐可以在形成悬浮产物时混入所述饱和溶液中。
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公开(公告)号：UST896056I4
公开(公告)日：1972-03-28
申请号：US896056D
申请日：1971-03-22
IPC分类号： C05B13/06
CPC分类号： C05B13/06 , C05G3/0005
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公开(公告)号：US3645675A
公开(公告)日：1972-02-29
申请号：US3645675D
申请日：1969-12-19
申请人： MONSANTO CO
发明人： SEARS PAUL G , VANDERSALL HOWARD L
CPC分类号： C05B13/06 , C01B25/28 , C01B25/405
摘要： Ammonium pyrophosphates of the formula (NH4)2 7H1 3P2O7 and (NH4)3 3H 7P2O7 are useful as intermediates in the preparation of polymeric water insoluble ammonium polyphosphates and as final products in detergent and fertilizer applications. The new ammonium pyrophosphates are prepared by condensing orthophosphoric acid with a combined ammoniating and condensing agent, e.g., urea, in a molar ratio of nitrogen to phosphorus of 1.4 to 1.75 or 2.5 to 4.0.
摘要翻译： 式（NH4）2 7H1 3P2O7和（NH4）3 3H7P2O7的焦磷酸铵可用作制备聚合水不溶性聚磷酸铵的中间体，也可用作洗涤剂和肥料应用中的最终产品。 新的焦磷酸铵通过将正磷酸与氮与磷的摩尔比为1.4至1.75或2.5至4.0的组合的氨化和缩合剂（例如尿素）进行冷凝来制备。
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公开(公告)号：UST890012I4
公开(公告)日：1971-09-21
申请号：US890012D
申请日：1970-12-23
IPC分类号： C05B13/06
CPC分类号： C05B13/06 , C05G3/0064
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公开(公告)号：UST890010I4
公开(公告)日：1971-09-21
申请号：US890010D
申请日：1970-10-21
IPC分类号： C05B13/06
CPC分类号： C05B13/06 , C05G3/0064
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公开(公告)号：US3600152A
公开(公告)日：1971-08-17
申请号：US3600152D
申请日：1968-08-27
申请人： PENNZOIL UNITED INC
发明人： DRECHSEL ERHART K , SARDISCO JOHN B
CPC分类号： C05B13/06 , C01B25/412
摘要： REACTION OF PHOSPHATE ROCK AND/OR DERIVATIVES THEREOF WITH PHOSPHORIC ACID OR MIXTURES THEREOF WITH SULFURIC ACID AND POTASSIUM BISULFATE AND/OR POTASSIUM SULFATE. THERE IS ALSO DISCLOSED A POTASSIUM POLYPHOSPHATE DESIGNATED POTASSIUM ANHYDROPHOSPHATE OF VARYING WATER SOLUBILITY AND MOLECULAR WEIGHT. THESE PRODUCT MIXTURES EXHIBIT EXCELLENT SOLUBILITY PROPERTIES FOR USE AS CONTROLLEDRELEASE FERTILIZER MATERIALS.
FERTILIZER PRODUCTS HAVING CONTROLLED WATER SOLUBILITIES AND MOLECULAR WEIGHTS WHICH COMPRISE POLYMERIC REACTION PRODUCTS OF POTASSIUM DIHYDROGEN PHOSPHATE AND POTASSIUM MONOHYDROGEN PHOSPHATE HAVING MOLECULAR WEIGHTS OF ABOUT 20,000 TO 80,000, PRODUCED IN THE TEMPERATURE RANGE OF 250 TO 850*C. THE PRODUCTS ARE UNIQUE IN THAT THE SOLUBILITY IN WATER CAN BE PREDETERMINED AND CONTROLLED BY REGULATION OF THE REACTANT AMOUNTS AND REACTION CONDITIONS. THE POTASSIUM DIHYDROGEN PHOSPHATE AND POTASSIUM MONOHYDROGEN PHOSPHATE MIXTURES ARE PRODUCED BY MIXING OR THE MIXTURES MAY BE PRODUCED BY A-
公开(公告)号：US3574591A
公开(公告)日：1971-04-13
申请号：US3574591D
申请日：1968-05-15
申请人： MONSANTO CO
CPC分类号： C01B25/451 , C01B25/45 , C05B13/06
摘要： A PROCESS FOR PRODUCING SLOWLY SOLUBLE AMMONIUM-POTASSIUM-MULTIVALENT METAL CATION POLYPHOSPHATES, USEFUL AS SLOW RELEASE FERTILIZERS IS DISCLOSED WHICH PROCESS COMPRISES THERMALLY CONDENSING (1) AN INORGANIC PHOSPHATECONTAINING MATERIAL (2) A POTASSIUM-CONTAINING MATERIAL AND (3) A MULTIVALENT METAL SOURCE, IN THE PRESENCE OF A COMBINED AMMONIATING AND CONDENSING AGENT, UNDER CONTROLLED TEMPERATURE CONDITIONS TO THEREBY PRODUCE THE MIXED CATION POLYPHOSPHATES CONTAINING SPECIFIED RATIOS OF THE NITROGEN AND POTASSIUM AND SPECIFIED QUANTITIES OF MULTIVALENT CATIONS.
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